Ram Gandikota
FRDM K64F Metronome
Diff: mbed-client/source/m2mnsdlinterface.cpp
- Revision:
- 0:dbad57390bd1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-client/source/m2mnsdlinterface.cpp Sun May 14 18:37:05 2017 +0000
@@ -0,0 +1,1655 @@
+/*
+ * Copyright (c) 2015 ARM Limited. All rights reserved.
+ * SPDX-License-Identifier: Apache-2.0
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Note: this macro is needed on armcc to get the the PRI*32 macros
+// from inttypes.h in a C++ code.
+#ifndef __STDC_FORMAT_MACROS
+#define __STDC_FORMAT_MACROS
+#endif
+
+// Note: this macro is needed on armcc to get the the limit macros like UINT16_MAX
+#ifndef __STDC_LIMIT_MACROS
+#define __STDC_LIMIT_MACROS
+#endif
+
+
+#include "include/nsdlaccesshelper.h"
+#include "include/m2mnsdlobserver.h"
+#include "include/m2mtlvdeserializer.h"
+#include "include/m2mtlvserializer.h"
+#include "include/m2mnsdlinterface.h"
+#include "mbed-client/m2mstring.h"
+#include "mbed-client/m2msecurity.h"
+#include "mbed-client/m2mserver.h"
+#include "mbed-client/m2mobject.h"
+#include "mbed-client/m2mobjectinstance.h"
+#include "mbed-client/m2mresource.h"
+#include "mbed-client/m2mconstants.h"
+#include "mbed-trace/mbed_trace.h"
+#include "mbed-client/m2mtimer.h"
+#include "source/libNsdl/src/include/sn_grs.h"
+
+#include <assert.h>
+#include <inttypes.h>
+#include <stdlib.h>
+
+#define BUFFER_SIZE 21
+#define TRACE_GROUP "mClt"
+
+M2MNsdlInterface::M2MNsdlInterface(M2MNsdlObserver &observer)
+: _observer(observer),
+ _endpoint(NULL),
+ _nsdl_handle(NULL),
+ _security(NULL),
+ _server(),
+ _nsdl_exceution_timer(new M2MTimer(*this)),
+ _registration_timer(new M2MTimer(*this)),
+ _counter_for_nsdl(0),
+ _bootstrap_id(0),
+ _unregister_ongoing(false),
+ _identity_accepted(false)
+{
+ tr_debug("M2MNsdlInterface::M2MNsdlInterface()");
+ __nsdl_interface_list.push_back(this);
+ _sn_nsdl_address.addr_len = 0;
+ _sn_nsdl_address.addr_ptr = NULL;
+ _sn_nsdl_address.port = 0;
+ _sn_nsdl_address.type = SN_NSDL_ADDRESS_TYPE_NONE;
+
+ // This initializes libCoap and libNsdl
+ // Parameters are function pointers to used memory allocation
+ // and free functions in structure and used functions for sending
+ // and receiving purposes.
+ _nsdl_handle = sn_nsdl_init(&(__nsdl_c_send_to_server), &(__nsdl_c_received_from_server),
+ &(__nsdl_c_memory_alloc), &(__nsdl_c_memory_free));
+
+ initialize();
+}
+
+M2MNsdlInterface::~M2MNsdlInterface()
+{
+ tr_debug("M2MNsdlInterface::~M2MNsdlInterface() - IN");
+ if(_endpoint) {
+ memory_free(_endpoint->endpoint_name_ptr);
+ memory_free(_endpoint->lifetime_ptr);
+ memory_free(_endpoint->location_ptr);
+ memory_free(_endpoint);
+ }
+ delete _nsdl_exceution_timer;
+ delete _registration_timer;
+ _object_list.clear();
+ _security = NULL;
+
+ sn_nsdl_destroy(_nsdl_handle);
+ _nsdl_handle = NULL;
+
+ M2MNsdlInterfaceList::const_iterator it;
+ it = __nsdl_interface_list.begin();
+ int index = 0;
+ for (; it!=__nsdl_interface_list.end(); it++) {
+ if ((*it) == this) {
+ __nsdl_interface_list.erase(index);
+ break;
+ }
+ index++;
+ }
+ tr_debug("M2MNsdlInterface::~M2MNsdlInterface() - OUT");
+}
+
+bool M2MNsdlInterface::initialize()
+{
+ tr_debug("M2MNsdlInterface::initialize()");
+ bool success = false;
+
+ //Sets the packet retransmission attempts and time interval
+ sn_nsdl_set_retransmission_parameters(_nsdl_handle,
+ MBED_CLIENT_RECONNECTION_COUNT,
+ MBED_CLIENT_RECONNECTION_INTERVAL);
+
+ //Allocate the memory for endpoint
+ _endpoint = (sn_nsdl_ep_parameters_s*)memory_alloc(sizeof(sn_nsdl_ep_parameters_s));
+ if(_endpoint) {
+ memset(_endpoint, 0, sizeof(sn_nsdl_ep_parameters_s));
+ success = true;
+ }
+ return success;
+}
+
+void M2MNsdlInterface::create_endpoint(const String &name,
+ const String &type,
+ const int32_t life_time,
+ const String &domain,
+ const uint8_t mode,
+ const String &/*context_address*/)
+{
+ tr_debug("M2MNsdlInterface::create_endpoint( name %s type %s lifetime %" PRId32 ", domain %s, mode %d)",
+ name.c_str(), type.c_str(), life_time, domain.c_str(), mode);
+ _endpoint_name = name;
+ if(_endpoint){
+ memset(_endpoint, 0, sizeof(sn_nsdl_ep_parameters_s));
+ if(!_endpoint_name.empty()) {
+ memory_free(_endpoint->endpoint_name_ptr);
+ _endpoint->endpoint_name_ptr = alloc_string_copy((uint8_t*)_endpoint_name.c_str(), _endpoint_name.length());
+ _endpoint->endpoint_name_len = _endpoint_name.length();
+ }
+ if(!type.empty()) {
+ _endpoint->type_ptr = (uint8_t*)type.c_str();
+ _endpoint->type_len = type.length();
+ }
+ if(!domain.empty()) {
+ _endpoint->domain_name_ptr = (uint8_t*)domain.c_str();
+ _endpoint->domain_name_len = domain.length();
+ }
+ _endpoint->binding_and_mode = (sn_nsdl_oma_binding_and_mode_t)mode;
+
+ // If lifetime is less than zero then leave the field empty
+ if( life_time > 0) {
+ set_endpoint_lifetime_buffer(life_time);
+ }
+ }
+}
+
+void M2MNsdlInterface::set_endpoint_lifetime_buffer(int lifetime)
+{
+ // max len of "-9223372036854775808" plus zero termination
+ char buffer[20+1];
+
+ uint32_t size = m2m::itoa_c(lifetime, buffer);
+
+ if (_endpoint && size <= sizeof(buffer)) {
+ _endpoint->lifetime_ptr = alloc_string_copy((uint8_t*)buffer, size);
+ if(_endpoint->lifetime_ptr) {
+ _endpoint->lifetime_len = size;
+ } else {
+ _endpoint->lifetime_len = 0;
+ }
+ }
+}
+
+
+void M2MNsdlInterface::delete_endpoint()
+{
+ tr_debug("M2MNsdlInterface::delete_endpoint()");
+ if(_endpoint) {
+ free(_endpoint->lifetime_ptr);
+
+ memory_free(_endpoint);
+ _endpoint = NULL;
+ }
+}
+
+bool M2MNsdlInterface::create_nsdl_list_structure(const M2MObjectList &object_list)
+{
+ tr_debug("M2MNsdlInterface::create_nsdl_list_structure()");
+ bool success = false;
+ if(!object_list.empty()) {
+ tr_debug("M2MNsdlInterface::create_nsdl_list_structure - Object count is %d", object_list.size());
+ M2MObjectList::const_iterator it;
+ it = object_list.begin();
+ for ( ; it != object_list.end(); it++ ) {
+ // Create NSDL structure for all Objects inside
+ success = create_nsdl_object_structure(*it);
+ add_object_to_list(*it);
+ }
+ }
+ return success;
+}
+
+bool M2MNsdlInterface::remove_nsdl_resource(M2MBase *base)
+{
+ sn_nsdl_dynamic_resource_parameters_s* resource = base->get_nsdl_resource();
+ return sn_nsdl_pop_resource(_nsdl_handle, resource);
+}
+
+bool M2MNsdlInterface::create_bootstrap_resource(sn_nsdl_addr_s *address, const String &bootstrap_endpoint_name)
+{
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MNsdlInterface::create_bootstrap_resource()");
+ _identity_accepted = false;
+ bool success = false;
+ sn_nsdl_bs_ep_info_t bootstrap_endpoint;
+ tr_debug("M2MNsdlInterface::create_bootstrap_resource() - endpoint name: %s", bootstrap_endpoint_name.c_str());
+ if (_endpoint->endpoint_name_ptr) {
+ memory_free(_endpoint->endpoint_name_ptr);
+ }
+
+ _endpoint->endpoint_name_ptr = alloc_string_copy((uint8_t*)bootstrap_endpoint_name.c_str(), bootstrap_endpoint_name.length());
+ _endpoint->endpoint_name_len = bootstrap_endpoint_name.length();
+ if(_bootstrap_id == 0) {
+ _bootstrap_id = sn_nsdl_oma_bootstrap(_nsdl_handle,
+ address,
+ _endpoint,
+ &bootstrap_endpoint);
+ tr_debug("M2MNsdlInterface::create_bootstrap_resource - _bootstrap_id %d", _bootstrap_id);
+ success = _bootstrap_id != 0;
+ }
+ return success;
+#else
+ (void)address;
+ (void)bootstrap_endpoint_name;
+ return false;
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+}
+
+bool M2MNsdlInterface::send_register_message(uint8_t* address,
+ uint8_t address_length,
+ const uint16_t port,
+ sn_nsdl_addr_type_e address_type)
+{
+ tr_debug("M2MNsdlInterface::send_register_message()");
+ _nsdl_exceution_timer->stop_timer();
+ _nsdl_exceution_timer->start_timer(ONE_SECOND_TIMER * 1000,
+ M2MTimerObserver::NsdlExecution,
+ false);
+ bool success = false;
+ if(set_NSP_address(_nsdl_handle, address, address_length, port, address_type) == 0) {
+ success = sn_nsdl_register_endpoint(_nsdl_handle,_endpoint) != 0;
+ }
+ return success;
+}
+
+bool M2MNsdlInterface::send_update_registration(const uint32_t lifetime)
+{
+ tr_debug("M2MNsdlInterface::send_update_registration( lifetime %" PRIu32 ")", lifetime);
+ bool success = false;
+ create_nsdl_list_structure(_object_list);
+
+ //If Lifetime value is 0, then don't change the existing lifetime value
+ if(lifetime != 0) {
+ if(_endpoint && _endpoint->lifetime_ptr) {
+ memory_free(_endpoint->lifetime_ptr);
+ _endpoint->lifetime_ptr = NULL;
+ _endpoint->lifetime_len = 0;
+ }
+ set_endpoint_lifetime_buffer(lifetime);
+
+ _registration_timer->stop_timer();
+ _registration_timer->start_timer(registration_time() * 1000,
+ M2MTimerObserver::Registration,
+ false);
+ if(_nsdl_handle &&
+ _endpoint && _endpoint->lifetime_ptr) {
+ tr_debug("M2MNsdlInterface::send_update_registration - new lifetime value");
+ success = sn_nsdl_update_registration(_nsdl_handle,
+ _endpoint->lifetime_ptr,
+ _endpoint->lifetime_len) != 0;
+ }
+ } else {
+ if(_nsdl_handle) {
+ tr_debug("M2MNsdlInterface::send_update_registration - regular update");
+ success = sn_nsdl_update_registration(_nsdl_handle, NULL, 0) != 0;
+ }
+ }
+ return success;
+}
+
+bool M2MNsdlInterface::send_unregister_message()
+{
+ tr_debug("M2MNsdlInterface::send_unregister_message");
+ if (_unregister_ongoing) {
+ tr_debug("M2MNsdlInterface::send_unregister_message - unregistration already in progress");
+ return true;
+ }
+
+ bool success = false;
+ _unregister_ongoing = true;
+ success = sn_nsdl_unregister_endpoint(_nsdl_handle) != 0;
+ return success;
+}
+
+// XXX: move these to common place, no need to copy these wrappers to multiple places:
+void *M2MNsdlInterface::memory_alloc(uint16_t size)
+{
+ if(size)
+ return malloc(size);
+ else
+ return 0;
+}
+
+void M2MNsdlInterface::memory_free(void *ptr)
+{
+ if(ptr)
+ free(ptr);
+}
+
+uint8_t* M2MNsdlInterface::alloc_string_copy(const uint8_t* source, uint16_t size)
+{
+ assert(source != NULL);
+
+ uint8_t* result = (uint8_t*)memory_alloc(size + 1);
+ if (result) {
+ memcpy(result, source, size);
+ result[size] = '\0';
+ }
+ return result;
+}
+
+uint8_t M2MNsdlInterface::send_to_server_callback(struct nsdl_s * /*nsdl_handle*/,
+ sn_nsdl_capab_e /*protocol*/,
+ uint8_t *data_ptr,
+ uint16_t data_len,
+ sn_nsdl_addr_s *address)
+{
+ tr_debug("M2MNsdlInterface::send_to_server_callback()");
+ _observer.coap_message_ready(data_ptr,data_len,address);
+ return 1;
+}
+
+uint8_t M2MNsdlInterface::received_from_server_callback(struct nsdl_s *nsdl_handle,
+ sn_coap_hdr_s *coap_header,
+ sn_nsdl_addr_s *address)
+{
+ _observer.coap_data_processed();
+ uint8_t value = 0;
+ if(nsdl_handle && coap_header) {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - incoming msg id:%" PRIu16, coap_header->msg_id);
+ tr_debug("M2MNsdlInterface::received_from_server_callback - registration id:%" PRIu16, nsdl_handle->register_msg_id);
+ tr_debug("M2MNsdlInterface::received_from_server_callback - unregistration id:%" PRIu16, nsdl_handle->unregister_msg_id);
+ tr_debug("M2MNsdlInterface::received_from_server_callback - update registration id:%" PRIu16, nsdl_handle->update_register_msg_id);
+ bool is_bootstrap_msg = address && (nsdl_handle->oma_bs_address_len == address->addr_len) &&
+ (nsdl_handle->oma_bs_port == address->port) &&
+ !memcmp(nsdl_handle->oma_bs_address_ptr, address->addr_ptr, nsdl_handle->oma_bs_address_len);
+ if(coap_header->msg_id == nsdl_handle->register_msg_id) {
+ if(coap_header->msg_code == COAP_MSG_CODE_RESPONSE_CREATED) {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - registration callback");
+ _observer.client_registered(&_server);
+ // If lifetime is less than zero then leave the field empty
+ if(coap_header->options_list_ptr) {
+ memory_free(_endpoint->lifetime_ptr);
+ _endpoint->lifetime_ptr = NULL;
+ _endpoint->lifetime_len = 0;
+
+ uint32_t max_time = coap_header->options_list_ptr->max_age;
+ // If lifetime is less than zero then leave the field empty
+ if( max_time > 0) {
+ set_endpoint_lifetime_buffer(max_time);
+ }
+ if(coap_header->options_list_ptr->location_path_ptr) {
+
+ memory_free(_endpoint->location_ptr);
+
+ _endpoint->location_ptr = alloc_string_copy(coap_header->options_list_ptr->location_path_ptr, coap_header->options_list_ptr->location_path_len);
+ if (_endpoint->location_ptr != NULL) {
+ _endpoint->location_len = coap_header->options_list_ptr->location_path_len;
+ }
+ sn_nsdl_set_endpoint_location(_nsdl_handle,_endpoint->location_ptr,_endpoint->location_len);
+ }
+ }
+ if(_endpoint->lifetime_ptr) {
+ _registration_timer->stop_timer();
+ _registration_timer->start_timer(registration_time() * 1000,
+ M2MTimerObserver::Registration,
+ false);
+ }
+ } else {
+ tr_error("M2MNsdlInterface::received_from_server_callback - registration error %d", coap_header->msg_code);
+ // Try to do clean register again
+ if(COAP_MSG_CODE_RESPONSE_BAD_REQUEST == coap_header->msg_code ||
+ COAP_MSG_CODE_RESPONSE_FORBIDDEN == coap_header->msg_code) {
+ _observer.registration_error(M2MInterface::InvalidParameters, false);
+ } else {
+ _observer.registration_error(M2MInterface::NetworkError, true);
+ }
+
+ }
+ } else if(coap_header->msg_id == nsdl_handle->unregister_msg_id) {
+ _unregister_ongoing = false;
+ tr_debug("M2MNsdlInterface::received_from_server_callback - unregistration callback");
+ if(coap_header->msg_code == COAP_MSG_CODE_RESPONSE_DELETED) {
+ _registration_timer->stop_timer();
+ _observer.client_unregistered();
+ } else {
+ tr_error("M2MNsdlInterface::received_from_server_callback - unregistration error %d", coap_header->msg_code);
+ M2MInterface::Error error = interface_error(coap_header);
+ _observer.registration_error(error);
+ }
+ } else if(coap_header->msg_id == nsdl_handle->update_register_msg_id) {
+ if(coap_header->msg_code == COAP_MSG_CODE_RESPONSE_CHANGED) {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - registration_updated successfully");
+ _observer.registration_updated(_server);
+ } else {
+ tr_error("M2MNsdlInterface::received_from_server_callback - registration_updated failed %d", coap_header->msg_code);
+ _registration_timer->stop_timer();
+ sn_nsdl_register_endpoint(_nsdl_handle,_endpoint);
+ }
+ }
+#ifndef MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ else if(coap_header->msg_id == nsdl_handle->bootstrap_msg_id) {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - bootstrap");
+ _bootstrap_id = 0;
+ M2MInterface::Error error = interface_error(coap_header);
+ if(error != M2MInterface::ErrorNone) {
+ handle_bootstrap_error();
+ } else {
+ _identity_accepted = true;
+ }
+ }
+#endif //MBED_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ else {
+
+ sn_coap_hdr_s *coap_response = NULL;
+ bool execute_value_updated = false;
+ M2MObjectInstance *obj_instance = NULL;
+ String resource_name;
+
+ if(COAP_MSG_CODE_REQUEST_PUT == coap_header->msg_code) {
+ if (is_bootstrap_msg) {
+ handle_bootstrap_put_message(coap_header, address);
+ }
+ else{
+ tr_debug("M2MNsdlInterface::received_from_server_callback - Method not allowed (PUT).");
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ COAP_MSG_CODE_RESPONSE_METHOD_NOT_ALLOWED);
+ }
+ }
+ else if(COAP_MSG_CODE_REQUEST_DELETE == coap_header->msg_code) {
+ if (is_bootstrap_msg) {
+ handle_bootstrap_delete(coap_header, address);
+ }
+ else{
+ tr_debug("M2MNsdlInterface::received_from_server_callback - Method not allowed (DELETE).");
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ COAP_MSG_CODE_RESPONSE_METHOD_NOT_ALLOWED);
+ }
+ }
+ else if(COAP_MSG_CODE_REQUEST_POST == coap_header->msg_code) {
+ if(is_bootstrap_msg) {
+ handle_bootstrap_finished(coap_header, address);
+ }
+ else if(coap_header->uri_path_ptr) {
+
+ resource_name = coap_to_string(coap_header->uri_path_ptr,
+ coap_header->uri_path_len);
+
+ String object_name;
+ int slash_found = resource_name.find_last_of('/');
+ //The POST operation here is only allowed for non-existing object instances
+ if(slash_found != -1) {
+ object_name = resource_name.substr(0,slash_found);
+ if( object_name.find_last_of('/') != -1){
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ COAP_MSG_CODE_RESPONSE_NOT_FOUND);
+ } else {
+ int32_t instance_id = atoi(resource_name.substr(slash_found+1,
+ resource_name.size()-object_name.size()).c_str());
+ M2MBase* base = find_resource(object_name);
+ if(base && (instance_id >= 0) && (instance_id < UINT16_MAX)) {
+ if(coap_header->payload_ptr) {
+ M2MObject* object = static_cast<M2MObject*> (base);
+ obj_instance = object->create_object_instance(instance_id);
+ if(obj_instance) {
+ obj_instance->set_operation(M2MBase::GET_PUT_POST_ALLOWED);
+ coap_response = obj_instance->handle_post_request(_nsdl_handle,
+ coap_header,
+ this,
+ execute_value_updated);
+ }
+ if(coap_response && coap_response->msg_code != COAP_MSG_CODE_RESPONSE_CREATED) {
+ //Invalid request so remove created ObjectInstance
+ object->remove_object_instance(instance_id);
+ } else {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - Send Update registration for Create");
+ send_update_registration();
+ }
+ } else {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - Missing Payload - Cannot create");
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ COAP_MSG_CODE_RESPONSE_BAD_REQUEST);
+ }
+ } else { //if(base)
+ tr_debug("M2MNsdlInterface::received_from_server_callback - Missing BASE - Cannot create");
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ COAP_MSG_CODE_RESPONSE_METHOD_NOT_ALLOWED);
+ }
+ }
+ } else{ // if(slash_found != -1)
+ tr_debug("M2MNsdlInterface::received_from_server_callback - slash_found - Cannot create");
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ COAP_MSG_CODE_RESPONSE_NOT_FOUND);
+ }
+
+ }
+ }
+ else if(COAP_MSG_CODE_EMPTY == coap_header->msg_code) {
+ if (COAP_MSG_TYPE_RESET == coap_header->msg_type) {
+ // Cancel ongoing observation
+ tr_error("M2MNsdlInterface::received_from_server_callback() - RESET message");
+ M2MBase *base = find_resource("", coap_header->token_ptr, coap_header->token_len);
+ if (base) {
+ M2MBase::BaseType type = base->base_type();
+ switch (type) {
+ case M2MBase::Object:
+ base->remove_observation_level(M2MBase::O_Attribute);
+ break;
+ case M2MBase::Resource:
+ base->remove_observation_level(M2MBase::R_Attribute);
+ break;
+ case M2MBase::ObjectInstance:
+ base->remove_observation_level(M2MBase::OI_Attribute);
+ break;
+ default:
+ break;
+ }
+ base->set_under_observation(false, this);
+ }
+ } else {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - Empty ACK, msg id: %d", coap_header->msg_id);
+ M2MBase *base = find_resource("", coap_header->token_ptr, coap_header->token_len);
+ if (base) {
+ // Supported only in Resource level
+ if (M2MBase::Resource == base->base_type()) {
+ M2MResource *resource = static_cast<M2MResource *> (base);
+ resource->notification_sent();
+ }
+ }
+ }
+ }
+
+ if(coap_response) {
+ tr_debug("M2MNsdlInterface::received_from_server_callback - send CoAP response");
+ (sn_nsdl_send_coap_message(_nsdl_handle, address, coap_response) == 0) ? value = 0 : value = 1;
+ sn_nsdl_release_allocated_coap_msg_mem(_nsdl_handle, coap_response);
+ }
+
+ if (execute_value_updated) {
+ value_updated(obj_instance, resource_name);
+ }
+
+ }
+ }
+ return value;
+}
+
+uint8_t M2MNsdlInterface::resource_callback(struct nsdl_s */*nsdl_handle*/,
+ sn_coap_hdr_s *received_coap_header,
+ sn_nsdl_addr_s *address,
+ sn_nsdl_capab_e /*nsdl_capab*/)
+{
+ tr_debug("M2MNsdlInterface::resource_callback()");
+ _observer.coap_data_processed();
+ uint8_t result = 1;
+ sn_coap_hdr_s *coap_response = NULL;
+ sn_coap_msg_code_e msg_code = COAP_MSG_CODE_RESPONSE_CHANGED; // 4.00
+ String resource_name = coap_to_string(received_coap_header->uri_path_ptr,
+ received_coap_header->uri_path_len);
+ tr_debug("M2MNsdlInterface::resource_callback() - resource_name %s", resource_name.c_str());
+ bool execute_value_updated = false;
+ M2MBase* base = find_resource(resource_name);
+ if(base) {
+ if(COAP_MSG_CODE_REQUEST_GET == received_coap_header->msg_code) {
+ coap_response = base->handle_get_request(_nsdl_handle, received_coap_header,this);
+ } else if(COAP_MSG_CODE_REQUEST_PUT == received_coap_header->msg_code) {
+ coap_response = base->handle_put_request(_nsdl_handle, received_coap_header, this, execute_value_updated);
+ } else if(COAP_MSG_CODE_REQUEST_POST == received_coap_header->msg_code) {
+ if(base->base_type() == M2MBase::ResourceInstance) {
+ msg_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST;
+ } else {
+ coap_response = base->handle_post_request(_nsdl_handle,
+ received_coap_header,
+ this,
+ execute_value_updated,
+ address);
+ }
+ } else if(COAP_MSG_CODE_REQUEST_DELETE == received_coap_header->msg_code) {
+ // Delete the object instance
+ tr_debug("M2MNsdlInterface::resource_callback() - DELETE the object instance");
+ M2MBase::BaseType type = base->base_type();
+ if(M2MBase::ObjectInstance == type) {
+ M2MBase* base_object = find_resource(base->name());
+ if(base_object) {
+ M2MObject *object = static_cast<M2MObject*> (base_object);
+ int slash_found = resource_name.find_last_of('/');
+ // Object instance validty checks done in upper level, no need for error handling
+ if(slash_found != -1) {
+ String object_name;
+ object_name = resource_name.substr(slash_found + 1, resource_name.length());
+ if (object->remove_object_instance(strtoul(
+ object_name.c_str(),
+ NULL,
+ 10))) {
+ msg_code = COAP_MSG_CODE_RESPONSE_DELETED;
+ }
+ }
+ }
+ } else {
+ msg_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST; // 4.00
+ }
+ }
+ } else {
+ tr_debug("M2MNsdlInterface::resource_callback() - Resource NOT FOUND");
+ msg_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST; // 4.00
+ }
+ if(!coap_response) {
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ received_coap_header,
+ msg_code);
+ }
+ if(coap_response &&
+ coap_response->coap_status != COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVING &&
+ coap_response->msg_code != COAP_MSG_CODE_EMPTY) {
+
+ tr_debug("M2MNsdlInterface::resource_callback() - send CoAP response");
+ (sn_nsdl_send_coap_message(_nsdl_handle, address, coap_response) == 0) ? result = 0 : result = 1;
+ if(coap_response->payload_ptr) {
+ free(coap_response->payload_ptr);
+ coap_response->payload_ptr = NULL;
+ }
+ }
+ // If the external blockwise storing is enabled call value updated once all the blocks have been received
+ if (execute_value_updated &&
+ coap_response &&
+ coap_response->coap_status != COAP_STATUS_PARSER_BLOCKWISE_MSG_RECEIVING) {
+ value_updated(base,resource_name);
+ }
+
+ sn_nsdl_release_allocated_coap_msg_mem(_nsdl_handle, coap_response);
+ return result;
+}
+
+bool M2MNsdlInterface::process_received_data(uint8_t *data,
+ uint16_t data_size,
+ sn_nsdl_addr_s *address)
+{
+ tr_debug("M2MNsdlInterface::process_received_data( data size %d)", data_size);
+ return (0 == sn_nsdl_process_coap(_nsdl_handle,
+ data,
+ data_size,
+ address)) ? true : false;
+}
+
+void M2MNsdlInterface::stop_timers()
+{
+ tr_debug("M2MNsdlInterface::stop_timers()");
+ if(_registration_timer) {
+ _registration_timer->stop_timer();
+ }
+ if (_nsdl_exceution_timer) {
+ _nsdl_exceution_timer->stop_timer();
+ }
+ _bootstrap_id = 0;
+ _unregister_ongoing = false;
+}
+
+void M2MNsdlInterface::timer_expired(M2MTimerObserver::Type type)
+{
+ if(M2MTimerObserver::NsdlExecution == type) {
+ sn_nsdl_exec(_nsdl_handle, _counter_for_nsdl);
+ _counter_for_nsdl++;
+ } else if(M2MTimerObserver::Registration == type) {
+ tr_debug("M2MNsdlInterface::timer_expired - M2MTimerObserver::Registration - Send update registration");
+ send_update_registration();
+ }
+}
+
+void M2MNsdlInterface::observation_to_be_sent(M2MBase *object,
+ uint16_t obs_number,
+ m2m::Vector<uint16_t> changed_instance_ids,
+ bool send_object)
+{
+ __mutex_claim();
+ if(object) {
+ tr_debug("M2MNsdlInterface::observation_to_be_sent()");
+ M2MBase::BaseType type = object->base_type();
+ if(type == M2MBase::Object) {
+ send_object_observation(static_cast<M2MObject*> (object),
+ obs_number,
+ changed_instance_ids,
+ send_object);
+ } else if(type == M2MBase::ObjectInstance) {
+ send_object_instance_observation(static_cast<M2MObjectInstance*> (object), obs_number);
+ } else if(type == M2MBase::Resource) {
+ send_resource_observation(static_cast<M2MResource*> (object), obs_number);
+ }
+ }
+ __mutex_release();
+}
+
+void M2MNsdlInterface::send_delayed_response(M2MBase *base)
+{
+ __mutex_claim();
+ tr_debug("M2MNsdlInterface::send_delayed_response()");
+ M2MResource *resource = NULL;
+ if(base) {
+ if(M2MBase::Resource == base->base_type()) {
+ resource = static_cast<M2MResource *> (base);
+ }
+ if(resource) {
+ sn_coap_hdr_s * coap_response = static_cast<sn_coap_hdr_s *>(malloc(sizeof(sn_coap_hdr_s)));
+ if(coap_response) {
+ memset(coap_response,0,sizeof(sn_coap_hdr_s));
+
+ coap_response->msg_type = COAP_MSG_TYPE_CONFIRMABLE;
+ coap_response->msg_code = COAP_MSG_CODE_RESPONSE_CONTENT;
+ resource->get_delayed_token(coap_response->token_ptr,coap_response->token_len);
+
+ uint32_t length = 0;
+ resource->get_value(coap_response->payload_ptr, length);
+ coap_response->payload_len = length;
+
+ sn_nsdl_send_coap_message(_nsdl_handle, _nsdl_handle->nsp_address_ptr->omalw_address_ptr, coap_response);
+
+ if(coap_response->payload_ptr) {
+ free(coap_response->payload_ptr);
+ coap_response->payload_ptr = NULL;
+ }
+ if(coap_response->token_ptr) {
+ free(coap_response->token_ptr);
+ coap_response->token_ptr = NULL;
+ }
+ free(coap_response);
+ }
+ }
+ }
+ __mutex_release();
+}
+
+void M2MNsdlInterface::resource_to_be_deleted(M2MBase *base)
+{
+ __mutex_claim();
+ remove_nsdl_resource(base);
+ __mutex_release();
+}
+
+void M2MNsdlInterface::value_updated(M2MBase *base,
+ const String &object_name)
+{
+ tr_debug("M2MNsdlInterface::value_updated()");
+ if(base) {
+ switch(base->base_type()) {
+ case M2MBase::Object:
+ create_nsdl_object_structure(static_cast<M2MObject*> (base));
+ break;
+ case M2MBase::ObjectInstance:
+ create_nsdl_object_instance_structure(static_cast<M2MObjectInstance*> (base));
+ break;
+ case M2MBase::Resource: {
+ M2MResource* resource = static_cast<M2MResource*> (base);
+ create_nsdl_resource_structure(resource,
+ resource->supports_multiple_instances());
+ }
+ break;
+ case M2MBase::ResourceInstance: {
+ M2MResourceInstance* instance = static_cast<M2MResourceInstance*> (base);
+ create_nsdl_resource(instance);
+ }
+ break;
+ }
+ }
+
+ if (base && base->is_value_updated_function_set()) {
+ base->execute_value_updated(base->name());
+ }
+ else {
+ _observer.value_updated(base);
+ }
+}
+
+void M2MNsdlInterface::remove_object(M2MBase *object)
+{
+ __mutex_claim();
+ tr_debug("M2MNsdlInterface::remove_object()");
+ M2MObject* rem_object = static_cast<M2MObject*> (object);
+ if(rem_object && !_object_list.empty()) {
+ M2MObjectList::const_iterator it;
+ it = _object_list.begin();
+ int index = 0;
+ for ( ; it != _object_list.end(); it++, index++ ) {
+ if((*it) == rem_object) {
+ _object_list.erase(index);
+ break;
+ }
+ }
+ }
+ if(_object_list.empty()) {
+ _object_list.clear();
+ }
+ __mutex_release();
+}
+
+bool M2MNsdlInterface::create_nsdl_object_structure(M2MObject *object)
+{
+ tr_debug("M2MNsdlInterface::create_nsdl_object_structure()");
+ bool success = false;
+ if(object) {
+ M2MObjectInstanceList instance_list = object->instances();
+ tr_debug("M2MNsdlInterface::create_nsdl_object_structure - Object Instance count %d", instance_list.size());
+ if(!instance_list.empty()) {
+ M2MObjectInstanceList::const_iterator it;
+ it = instance_list.begin();
+ for ( ; it != instance_list.end(); it++ ) {
+ // Create NSDL structure for all object instances inside
+ success = create_nsdl_object_instance_structure(*it);
+ }
+ }
+ }
+ if(object && object->operation() != M2MBase::NOT_ALLOWED) {
+ success = create_nsdl_resource(object);
+ }
+ return success;
+}
+
+bool M2MNsdlInterface::create_nsdl_object_instance_structure(M2MObjectInstance *object_instance)
+{
+ tr_debug("M2MNsdlInterface::create_nsdl_object_instance_structure()");
+ bool success = false;
+ if( object_instance) {
+ M2MResourceList res_list = object_instance->resources();
+ tr_debug("M2MNsdlInterface::create_nsdl_object_instance_structure - ResourceBase count %d", res_list.size());
+ if(!res_list.empty()) {
+ M2MResourceList::const_iterator it;
+ it = res_list.begin();
+ for ( ; it != res_list.end(); it++ ) {
+ // Create NSDL structure for all resources inside
+ success = create_nsdl_resource_structure(*it,
+ (*it)->supports_multiple_instances());
+ }
+ }
+ if(object_instance->operation() != M2MBase::NOT_ALLOWED) {
+ success = create_nsdl_resource(object_instance);
+ }
+ }
+ return success;
+}
+
+bool M2MNsdlInterface::create_nsdl_resource_structure(M2MResource *res,
+ bool multiple_instances)
+{
+ tr_debug("M2MNsdlInterface::create_nsdl_resource_structure()");
+ bool success = false;
+ if(res) {
+ // if there are multiple instances supported
+ if(multiple_instances) {
+ M2MResourceInstanceList res_list = res->resource_instances();
+ tr_debug("M2MNsdlInterface::create_nsdl_resource_structure - ResourceInstance count %d", res_list.size());
+ if(!res_list.empty()) {
+ M2MResourceInstanceList::const_iterator it;
+ it = res_list.begin();
+ for ( ; it != res_list.end(); it++ ) {
+ success = create_nsdl_resource((*it));
+ if(!success) {
+ tr_error("M2MNsdlInterface::create_nsdl_resource_structure - instance creation failed");
+ return false;
+ }
+ }
+ // Register the main Resource as well along with ResourceInstances
+ success = create_nsdl_resource(res);
+ }
+ } else {
+ success = create_nsdl_resource(res);
+ }
+ }
+ return success;
+}
+
+bool M2MNsdlInterface::create_nsdl_resource(M2MBase *base)
+{
+ __mutex_claim();
+ tr_debug("M2MNsdlInterface::create_nsdl_resource");
+ bool success = false;
+ if(base) {
+ int8_t result = 0;
+ sn_nsdl_dynamic_resource_parameters_s* orig_resource = base->get_nsdl_resource();
+ tr_debug("M2MNsdlInterface::create_nsdl_resource - path (%.*s)", orig_resource->static_resource_parameters->pathlen,
+ orig_resource->static_resource_parameters->path);
+
+ // needed on deletion
+ if (base->observation_handler() == NULL) {
+ base->set_observation_handler(this);
+ }
+
+ result = sn_nsdl_put_resource(_nsdl_handle, orig_resource);
+ tr_debug("M2MNsdlInterface::create_nsdl_resource - Creating in NSDL-C result %d", result);
+
+ // Either the resource is created or it already
+ // exists , then result is success.
+ if (result == 0 ||
+ result == -2){
+ success = true;
+ }
+ }
+ __mutex_release();
+ return success;
+}
+
+// convenience method to get the URI from its buffer field...
+String M2MNsdlInterface::coap_to_string(uint8_t *coap_data,int coap_data_length)
+{
+ String value = "";
+ if (coap_data != NULL && coap_data_length > 0) {
+ value.append_raw((char *)coap_data,coap_data_length);
+ }
+ return value;
+}
+
+uint64_t M2MNsdlInterface::registration_time()
+{
+ uint64_t value = 0;
+ if(_endpoint && _endpoint->lifetime_ptr) {
+ value = atol((const char*)_endpoint->lifetime_ptr);
+ }
+
+ if(value >= OPTIMUM_LIFETIME) {
+ value = value - REDUCE_LIFETIME;
+ } else {
+ value = REDUCTION_FACTOR * value;
+ }
+ tr_debug("M2MNsdlInterface::registration_time - value (in seconds) %ld", value);
+ return value;
+}
+
+M2MBase* M2MNsdlInterface::find_resource(const String &object_name,
+ uint8_t *token,
+ uint8_t token_len)
+{
+ tr_debug("M2MNsdlInterface::find_resource(object level) - name (%s)", object_name.c_str());
+ tr_debug("M2MNsdlInterface::find_resource - token (%.*s)", token_len, token);
+ M2MBase *object = NULL;
+ if(!_object_list.empty()) {
+ M2MObjectList::const_iterator it;
+ it = _object_list.begin();
+ for ( ; it != _object_list.end(); it++ ) {
+ if (token_len == 0) {
+ tr_debug("M2MNsdlInterface::find_resource(object level) - path (%s)",
+ (char*)(*it)->uri_path());
+ if (strcmp((char*)(*it)->uri_path(), object_name.c_str()) == 0) {
+ object = (*it);
+ tr_debug("M2MNsdlInterface::find_resource(%s) found", object_name.c_str());
+ break;
+ }
+ } else {
+ uint8_t *stored_token = 0;
+ uint32_t stored_token_length = 0;
+ (*it)->get_observation_token(stored_token, stored_token_length);
+ tr_debug("M2MNsdlInterface::find_resource(object level) - stored token (%.*s)", stored_token_length, stored_token);
+ if (stored_token) {
+ if (stored_token_length == token_len &&
+ memcmp(token, stored_token, token_len) == 0) {
+ object = (*it);
+ tr_debug("M2MNsdlInterface::find_resource - token found");
+ free(stored_token);
+ break;
+ } else {
+ free(stored_token);
+ }
+ }
+ }
+ object = find_resource((*it), object_name, token, token_len);
+ if(object != NULL) {
+ break;
+ }
+ }
+ }
+ return object;
+}
+
+M2MBase* M2MNsdlInterface::find_resource(const M2MObject *object,
+ const String &object_instance,
+ uint8_t *token,
+ uint8_t token_len)
+{
+ tr_debug("M2MNsdlInterface::find_resource(object instance level) - name (%s)", object_instance.c_str());
+ M2MBase *instance = NULL;
+ if(object) {
+ M2MObjectInstanceList list = object->instances();
+ if(!list.empty()) {
+ M2MObjectInstanceList::const_iterator it;
+ it = list.begin();
+ for ( ; it != list.end(); it++ ) {
+ if (!token) {
+ tr_debug("M2MNsdlInterface::find_resource(object instance level) - path (%s)",
+ (char*)(*it)->uri_path());
+ if(!strcmp((char*)(*it)->uri_path(), object_instance.c_str())){
+ instance = (*it);
+ break;
+ }
+ } else {
+ uint8_t *stored_token = 0;
+ uint32_t stored_token_length = 0;
+ tr_debug("M2MNsdlInterface::find_resource(object instance level) - in token (%.*s)", token_len, token);
+ (*it)->get_observation_token(stored_token, stored_token_length);
+ tr_debug("M2MNsdlInterface::find_resource(object instance level) - stored token (%.*s)", stored_token_length, stored_token);
+ if (stored_token) {
+ if (stored_token_length == token_len &&
+ memcmp(token, stored_token, token_len) == 0) {
+ instance = (*it);
+ free(stored_token);
+ break;
+ } else {
+ free(stored_token);
+ }
+ }
+ }
+ instance = find_resource((*it),object_instance, token, token_len);
+ if(instance != NULL){
+ break;
+ }
+ }
+ }
+ }
+ return instance;
+}
+
+M2MBase* M2MNsdlInterface::find_resource(const M2MObjectInstance *object_instance,
+ const String &resource_instance,
+ uint8_t *token,
+ uint8_t token_len)
+{
+ tr_debug("M2MNsdlInterface::find_resource(resource level) - name (%s)", resource_instance.c_str());
+ M2MBase *instance = NULL;
+ if(object_instance) {
+ M2MResourceList list = object_instance->resources();
+ if(!list.empty()) {
+ M2MResourceList::const_iterator it;
+ it = list.begin();
+ for ( ; it != list.end(); it++ ) {
+ if (!token) {
+ if(!strcmp((char*)(*it)->uri_path(), resource_instance.c_str())) {
+ instance = *it;
+ break;
+ }
+ else if((*it)->supports_multiple_instances()) {
+ instance = find_resource((*it), (*it)->uri_path(),
+ resource_instance, token, token_len);
+ if(instance != NULL){
+ break;
+ }
+ }
+ } else {
+ uint8_t *stored_token = 0;
+ uint32_t stored_token_length = 0;
+ tr_debug("M2MNsdlInterface::find_resource(resource level) - in token (%.*s)", token_len, token);
+ (*it)->get_observation_token(stored_token, stored_token_length);
+ tr_debug("M2MNsdlInterface::find_resource(resource level) - stored token (%.*s)", stored_token_length, stored_token);
+ if (stored_token) {
+ if (stored_token_length == token_len &&
+ memcmp(token, stored_token, token_len) == 0) {
+ instance = *it;
+ free(stored_token);
+ break;
+ } else {
+ free(stored_token);
+ }
+ }
+ }
+ }
+ }
+ }
+ return instance;
+}
+
+M2MBase* M2MNsdlInterface::find_resource(const M2MResource *resource,
+ const String &object_name,
+ const String &resource_instance,
+ uint8_t */*token*/,
+ uint8_t /*token_len*/)
+{
+ tr_debug("M2MNsdlInterface::find_resource(resource instance level)");
+ M2MBase *res = NULL;
+ if(resource) {
+ if(resource->supports_multiple_instances()) {
+ M2MResourceInstanceList list = resource->resource_instances();
+ if(!list.empty()) {
+ M2MResourceInstanceList::const_iterator it;
+ it = list.begin();
+ for ( ; it != list.end(); it++ ) {
+ if(!strcmp((char*)(*it)->uri_path(), resource_instance.c_str())){
+ res = (*it);
+ break;
+ }
+ }
+ }
+ }
+ }
+ return res;
+}
+
+bool M2MNsdlInterface::object_present(M2MObject* object) const
+{
+ bool success = false;
+ if(object && !_object_list.empty()) {
+ M2MObjectList::const_iterator it;
+ it = _object_list.begin();
+ for ( ; it != _object_list.end(); it++ ) {
+ if((*it) == object) {
+ success = true;
+ break;
+ }
+ }
+ }
+ return success;
+}
+
+bool M2MNsdlInterface::add_object_to_list(M2MObject* object)
+{
+ bool success = false;
+ if(object && !object_present(object)) {
+ _object_list.push_back(object);
+ success = true;
+ }
+ return success;
+}
+
+M2MInterface::Error M2MNsdlInterface::interface_error(sn_coap_hdr_s *coap_header)
+{
+ M2MInterface::Error error = M2MInterface::ErrorNone;
+ if(coap_header) {
+ switch(coap_header->msg_code) {
+ case COAP_MSG_CODE_RESPONSE_BAD_REQUEST:
+ case COAP_MSG_CODE_RESPONSE_BAD_OPTION:
+ case COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_INCOMPLETE:
+ case COAP_MSG_CODE_RESPONSE_PRECONDITION_FAILED:
+ case COAP_MSG_CODE_RESPONSE_REQUEST_ENTITY_TOO_LARGE:
+ case COAP_MSG_CODE_RESPONSE_UNSUPPORTED_CONTENT_FORMAT:
+ error = M2MInterface::InvalidParameters;
+ break;
+ case COAP_MSG_CODE_RESPONSE_UNAUTHORIZED:
+ case COAP_MSG_CODE_RESPONSE_FORBIDDEN:
+ case COAP_MSG_CODE_RESPONSE_NOT_ACCEPTABLE:
+ case COAP_MSG_CODE_RESPONSE_NOT_FOUND:
+ case COAP_MSG_CODE_RESPONSE_METHOD_NOT_ALLOWED:
+ error = M2MInterface::NotAllowed;
+ break;
+ case COAP_MSG_CODE_RESPONSE_CREATED:
+ case COAP_MSG_CODE_RESPONSE_DELETED:
+ case COAP_MSG_CODE_RESPONSE_VALID:
+ case COAP_MSG_CODE_RESPONSE_CHANGED:
+ case COAP_MSG_CODE_RESPONSE_CONTENT:
+ error = M2MInterface::ErrorNone;
+ break;
+ default:
+ error = M2MInterface::UnknownError;
+ break;
+ }
+ if(coap_header->coap_status == COAP_STATUS_BUILDER_MESSAGE_SENDING_FAILED) {
+ error = M2MInterface::NetworkError;
+ }
+ }
+ return error;
+}
+
+void M2MNsdlInterface::send_object_observation(M2MObject *object,
+ uint16_t obs_number,
+ m2m::Vector<uint16_t> changed_instance_ids,
+ bool send_object)
+{
+ tr_debug("M2MNsdlInterface::send_object_observation");
+ if(object) {
+ uint8_t *value = 0;
+ uint32_t length = 0;
+ uint8_t *token = 0;
+ uint32_t token_length = 0;
+
+ M2MTLVSerializer serializer;
+ // Send whole object structure
+ if (send_object) {
+ value = serializer.serialize(object->instances(), length);
+ }
+ // Send only changed object instances
+ else {
+ M2MObjectInstanceList list;
+ Vector<uint16_t>::const_iterator it;
+ it = changed_instance_ids.begin();
+ for (; it != changed_instance_ids.end(); it++){
+ M2MObjectInstance* obj_instance = object->object_instance(*it);
+ if (obj_instance){
+ list.push_back(obj_instance);
+ }
+ }
+ if (!list.empty()) {
+ value = serializer.serialize(list, length);
+ list.clear();
+ }
+ }
+
+ object->get_observation_token(token,token_length);
+
+ send_notification(token,
+ token_length,
+ value,
+ length,
+ obs_number,
+ object->max_age(),
+ object->coap_content_type());
+ memory_free(value);
+ memory_free(token);
+ }
+}
+
+void M2MNsdlInterface::send_object_instance_observation(M2MObjectInstance *object_instance,
+ uint16_t obs_number)
+{
+ tr_debug("M2MNsdlInterface::send_object_instance_observation");
+ if(object_instance) {
+ uint8_t *value = 0;
+ uint32_t length = 0;
+ uint8_t *token = 0;
+ uint32_t token_length = 0;
+
+ M2MTLVSerializer serializer;
+ value = serializer.serialize(object_instance->resources(), length);
+
+ object_instance->get_observation_token(token,token_length);
+
+ send_notification(token,
+ token_length,
+ value,
+ length,
+ obs_number,
+ object_instance->max_age(),
+ object_instance->coap_content_type());
+ memory_free(value);
+ memory_free(token);
+ }
+}
+
+void M2MNsdlInterface::send_resource_observation(M2MResource *resource,
+ uint16_t obs_number)
+{
+ tr_debug("M2MNsdlInterface::send_resource_observation");
+ if(resource) {
+ uint8_t *value = 0;
+ uint32_t length = 0;
+ uint8_t *token = 0;
+ uint32_t token_length = 0;
+
+ resource->get_observation_token(token,token_length);
+ uint8_t content_type = 0;
+ if(M2MResourceInstance::OPAQUE == resource->resource_instance_type()) {
+ content_type = COAP_CONTENT_OMA_OPAQUE_TYPE;
+ }
+ if (resource->resource_instance_count() > 0) {
+ content_type = COAP_CONTENT_OMA_TLV_TYPE;
+ M2MTLVSerializer serializer;
+ value = serializer.serialize(resource, length);
+ } else {
+ resource->get_value(value,length);
+ }
+ send_notification(token,
+ token_length,
+ value,
+ length,
+ obs_number,
+ resource->max_age(),
+ content_type);
+
+ memory_free(value);
+ memory_free(token);
+ }
+}
+
+void M2MNsdlInterface::send_notification(uint8_t *token,
+ uint8_t token_length,
+ uint8_t *value,
+ uint32_t value_length,
+ uint16_t observation,
+ uint32_t max_age,
+ uint8_t coap_content_type)
+
+{
+ tr_debug("M2MNsdlInterface::send_notification");
+ sn_coap_hdr_s *notification_message_ptr;
+
+ /* Allocate and initialize memory for header struct */
+ notification_message_ptr = static_cast<sn_coap_hdr_s *>(memory_alloc(sizeof(sn_coap_hdr_s)));
+ if (notification_message_ptr) {
+ memset(notification_message_ptr, 0, sizeof(sn_coap_hdr_s));
+
+ notification_message_ptr->options_list_ptr = sn_nsdl_alloc_options_list(_nsdl_handle, notification_message_ptr);
+ if (notification_message_ptr->options_list_ptr) {
+ /* Fill header */
+ notification_message_ptr->msg_type = COAP_MSG_TYPE_CONFIRMABLE;
+ notification_message_ptr->msg_code = COAP_MSG_CODE_RESPONSE_CONTENT;
+
+ /* Fill token */
+ notification_message_ptr->token_len = token_length;
+ notification_message_ptr->token_ptr = token;
+
+ /* Fill payload */
+ notification_message_ptr->payload_len = value_length;
+ notification_message_ptr->payload_ptr = value;
+
+ /* Fill observe */
+ notification_message_ptr->options_list_ptr->observe = observation;
+
+ notification_message_ptr->options_list_ptr->max_age = max_age;
+
+ notification_message_ptr->content_format = sn_coap_content_format_e(coap_content_type);
+
+ /* Send message */
+ sn_nsdl_send_coap_message(_nsdl_handle,
+ _nsdl_handle->nsp_address_ptr->omalw_address_ptr,
+ notification_message_ptr);
+
+ /* Free memory */
+ notification_message_ptr->payload_ptr = NULL;
+ notification_message_ptr->options_list_ptr->observe = -1;
+ notification_message_ptr->token_ptr = NULL;
+ }
+ sn_nsdl_release_allocated_coap_msg_mem(_nsdl_handle, notification_message_ptr);
+ }
+}
+
+nsdl_s * M2MNsdlInterface::get_nsdl_handle()
+{
+ return _nsdl_handle;
+}
+
+void M2MNsdlInterface::handle_bootstrap_put_message(sn_coap_hdr_s *coap_header,
+ sn_nsdl_addr_s *address) {
+#ifndef M2M_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MNsdlInterface::handle_bootstrap_message");
+ uint8_t response_code = COAP_MSG_CODE_RESPONSE_CHANGED;
+ sn_coap_hdr_s *coap_response = NULL;
+ bool success = false;
+ bool security_object = false;
+ uint16_t content_type = 0;
+
+ if (!_security) {
+ _security = new M2MSecurity(M2MSecurity::M2MServer);
+ }
+
+ String resource_name = coap_to_string(coap_header->uri_path_ptr,
+ coap_header->uri_path_len);
+ tr_debug("M2MNsdlInterface::handle_bootstrap_message - uri %s", resource_name.c_str());
+
+ // Check incoming object
+ if (resource_name.compare(0,1,"0") == 0) {
+ security_object = true;
+ if(_security) {
+ success = true;
+ // Not mandatory resource that's why it must be created first
+ _security->create_resource(M2MSecurity::ShortServerID, 1);
+ // Change operation mode
+ M2MResourceList list = _security->object_instance()->resources();
+ if(!list.empty()) {
+ M2MResourceList::const_iterator it;
+ it = list.begin();
+ for ( ; it != list.end(); it++ ) {
+ (*it)->set_operation(M2MBase::PUT_ALLOWED);
+ }
+ }
+ }
+ }
+ else if (resource_name.compare(0,1,"1") == 0) {
+ success = true;
+ }
+
+ if (success) {
+ // Send delayed response if token is part of the message
+ if (coap_header->token_ptr) {
+ tr_debug("M2MNsdlInterface::handle_bootstrap_message - send delayed response");
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ COAP_MSG_CODE_EMPTY);
+ if (coap_response) {
+ coap_response->msg_type = COAP_MSG_TYPE_ACKNOWLEDGEMENT;
+ sn_nsdl_send_coap_message(_nsdl_handle, address, coap_response);
+ sn_nsdl_release_allocated_coap_msg_mem(_nsdl_handle, coap_response);
+ }
+ }
+
+ if(coap_header->content_format != COAP_CT_NONE) {
+ content_type = coap_header->content_format;
+ }
+
+ tr_debug("M2MNsdlInterface::handle_bootstrap_message - content_type %d", content_type);
+ if (content_type != COAP_CONTENT_OMA_TLV_TYPE) {
+ success = false;
+ }
+ if (success) {
+ success = parse_bootstrap_message(coap_header, security_object);
+ // Set operation back to default ones
+ if (_security) {
+ M2MResourceList list = _security->object_instance()->resources();
+ if(!list.empty()) {
+ M2MResourceList::const_iterator it;
+ it = list.begin();
+ for ( ; it != list.end(); it++ ) {
+ (*it)->set_operation(M2MBase::NOT_ALLOWED);
+ }
+ }
+ }
+ }
+ }
+
+ if (!success) {
+ response_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST;
+ handle_bootstrap_error();
+ }
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ response_code);
+ if (coap_response) {
+ sn_nsdl_send_coap_message(_nsdl_handle, address, coap_response);
+ sn_nsdl_release_allocated_coap_msg_mem(_nsdl_handle, coap_response);
+ }
+#else
+ (void) coap_header;
+ (void) address;
+#endif
+}
+
+bool M2MNsdlInterface::parse_bootstrap_message(sn_coap_hdr_s *coap_header, bool is_security_object)
+{
+#ifndef M2M_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MNsdlInterface::parse_bootstrap_put_message");
+ bool ret = false;
+ bool is_obj_instance = false;
+ uint16_t instance_id = 0;
+ if (_security) {
+ // Actually there are no member variables on the M2MTLVDeserializer so all the methods
+ // could be converted to static ones.
+ M2MTLVDeserializer deserializer;
+
+ ret = is_obj_instance = deserializer.is_object_instance(coap_header->payload_ptr);
+ if (!is_obj_instance) {
+ ret = deserializer.is_resource(coap_header->payload_ptr);
+ }
+
+ if (ret) {
+ M2MTLVDeserializer::Error error = M2MTLVDeserializer::None;
+ if (is_obj_instance) {
+ if (is_security_object) {
+ error = deserializer.deserialise_object_instances(coap_header->payload_ptr,
+ coap_header->payload_len,
+ *_security,
+ M2MTLVDeserializer::Put);
+ }
+ else {
+ error = deserializer.deserialise_object_instances(coap_header->payload_ptr,
+ coap_header->payload_len,
+ _server,
+ M2MTLVDeserializer::Put);
+ }
+ }
+ else {
+ if (is_security_object) {
+ instance_id = deserializer.instance_id(coap_header->payload_ptr);
+ error = deserializer.deserialize_resources(coap_header->payload_ptr,
+ coap_header->payload_len,
+ *_security->object_instance(instance_id),
+ M2MTLVDeserializer::Put);
+ }
+ else {
+ instance_id = deserializer.instance_id(coap_header->payload_ptr);
+ error = deserializer.deserialize_resources(coap_header->payload_ptr,
+ coap_header->payload_len,
+ *(_server.object_instance(instance_id)),
+ M2MTLVDeserializer::Post);
+ }
+ }
+
+ if (error != M2MTLVDeserializer::None) {
+ tr_error("M2MNsdlInterface::parse_bootstrap_put_message - error %d", error);
+ ret = false;
+ }
+ }
+ }
+ return ret;
+#else
+ (void) coap_header;
+ (void) is_security_object;
+ return false;
+#endif
+}
+
+void M2MNsdlInterface::handle_bootstrap_finished(sn_coap_hdr_s *coap_header,sn_nsdl_addr_s *address)
+{
+#ifndef M2M_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ String object_name = coap_to_string(coap_header->uri_path_ptr,
+ coap_header->uri_path_len);
+ tr_debug("M2MNsdlInterface::handle_bootstrap_finished - path: %s", object_name.c_str());
+ sn_coap_hdr_s *coap_response = NULL;
+ uint8_t msg_code = COAP_MSG_CODE_RESPONSE_CHANGED;
+
+ // Accept only '/bs' path and check that needed data is in security object
+ if (object_name.size() != 2 ||
+ object_name.compare(0,2,BOOTSTRAP_URI) != 0 ||
+ !validate_security_object()) {
+ msg_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST;
+ } else {
+ // Add short server id to server object
+ _server.set_resource_value(M2MServer::ShortServerID,
+ _security->resource_value_int(M2MSecurity::ShortServerID));
+ }
+
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ msg_code);
+ if(coap_response) {
+ sn_nsdl_send_coap_message(_nsdl_handle, address, coap_response);
+ sn_nsdl_release_allocated_coap_msg_mem(_nsdl_handle, coap_response);
+ }
+ if (COAP_MSG_CODE_RESPONSE_CHANGED == msg_code) {
+ // Switch back to original ep name
+ if (_endpoint->endpoint_name_ptr) {
+ memory_free(_endpoint->endpoint_name_ptr);
+ }
+ _endpoint->endpoint_name_ptr = alloc_string_copy((uint8_t*)_endpoint_name.c_str(), _endpoint_name.length());
+ _endpoint->endpoint_name_len = _endpoint_name.length();
+ // Inform observer that bootstrap is finished but it should wait until nsdl has sent data.
+ // The final bootstrap_done callback is called in the observers data_sent callback.
+ _observer.bootstrap_wait(_security);
+ } else {
+ handle_bootstrap_error();
+ }
+#else
+ (void) coap_header;
+ (void) address;
+#endif
+}
+
+void M2MNsdlInterface::handle_bootstrap_delete(sn_coap_hdr_s *coap_header,sn_nsdl_addr_s *address)
+{
+#ifndef M2M_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ sn_coap_hdr_s *coap_response = NULL;
+ uint8_t msg_code = COAP_MSG_CODE_RESPONSE_DELETED;
+ String object_name = coap_to_string(coap_header->uri_path_ptr,
+ coap_header->uri_path_len);
+ tr_debug("M2MNsdlInterface::handle_bootstrap_delete - obj %s", object_name.c_str());
+ if(!_identity_accepted) {
+ msg_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST;
+ }
+ // Only following paths are accepted, 0, 0/0
+ else if (object_name.size() == 2 || object_name.size() > 3) {
+ msg_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST;
+ }
+ else if ((object_name.size() == 1 && object_name.compare(0,1,"0") != 0) ||
+ (object_name.size() == 3 && object_name.compare(0,3,"0/0") != 0)) {
+ msg_code = COAP_MSG_CODE_RESPONSE_BAD_REQUEST;
+ }
+
+ coap_response = sn_nsdl_build_response(_nsdl_handle,
+ coap_header,
+ msg_code);
+
+ if(coap_response) {
+ sn_nsdl_send_coap_message(_nsdl_handle, address, coap_response);
+ sn_nsdl_release_allocated_coap_msg_mem(_nsdl_handle, coap_response);
+ if(_security) {
+ _security->clear_resources();
+ }
+ }
+ if (!coap_response || COAP_MSG_CODE_RESPONSE_DELETED != msg_code) {
+ handle_bootstrap_error();
+ }
+#else
+ (void) coap_header;
+ (void) address;
+#endif
+}
+
+bool M2MNsdlInterface::validate_security_object()
+{
+#ifndef M2M_CLIENT_DISABLE_BOOTSTRAP_FEATURE
+ tr_debug("M2MNsdlInterface::validate_security_object");
+ if (_security) {
+ String address = _security->resource_value_string(M2MSecurity::M2MServerUri);
+ uint32_t sec_mode = _security->resource_value_int(M2MSecurity::SecurityMode);
+ bool is_bs_server = _security->resource_value_int(M2MSecurity::BootstrapServer);
+ uint32_t public_key_size = _security->get_resource(M2MSecurity::PublicKey)->value_length();
+ uint32_t server_key_size = _security->get_resource(M2MSecurity::ServerPublicKey)->value_length();
+ uint32_t pkey_size = _security->get_resource(M2MSecurity::Secretkey)->value_length();
+ tr_debug("M2MNsdlInterface::validate_security_object - Server URI /0/0: %s", address.c_str());
+ tr_debug("M2MNsdlInterface::validate_security_object - is bs server /0/1: %d", is_bs_server);
+ tr_debug("M2MNsdlInterface::validate_security_object - Security Mode /0/2: %" PRIu32, sec_mode);
+ tr_debug("M2MNsdlInterface::validate_security_object - Public key size /0/3: %" PRIu32, public_key_size);
+ tr_debug("M2MNsdlInterface::validate_security_object - Server Public key size /0/4: %" PRIu32, server_key_size);
+ tr_debug("M2MNsdlInterface::validate_security_object - Secret key size /0/5: %" PRIu32, pkey_size);
+ // Only NoSec and Certificate modes are supported
+ if (!address.empty() && !is_bs_server) {
+ if (M2MSecurity::Certificate == sec_mode) {
+ if (!public_key_size || !server_key_size || !pkey_size) {
+ return false;
+ } else {
+ return true;
+ }
+ } else if (M2MSecurity::NoSecurity == sec_mode){
+ return true;
+ } else {
+ return false;
+ }
+ } else {
+ return false;
+ }
+ }
+ return false;
+#else
+ return false;
+#endif
+}
+
+void M2MNsdlInterface::handle_bootstrap_error()
+{
+ tr_debug("M2MNsdlInterface::handle_bootstrap_error()");
+ _identity_accepted = false;
+ if (_security) {
+ delete _security;
+ _security = NULL;
+ }
+ _observer.bootstrap_error();
+}
+
+const String& M2MNsdlInterface::endpoint_name() const
+{
+ return _endpoint_name;
+}